JP6451830B2 - Information providing apparatus, computer program, recording medium, and information providing method - Google Patents

Description

  The present invention relates to an information providing apparatus that provides information relating to the number of vehicles passing through a predetermined position, a computer program for realizing the information providing apparatus, a recording medium that records the computer program, and an information providing method.

  The traffic signal controller switches the signal display of each signal lamp based on the step color information including the lamp color information that defines the lamp color of the signal display (step) of each signal lamp and the display time of each lamp color. In such a traffic signal controller, the traffic control center or traffic signal controller has an appropriate signal light device based on traffic data such as traffic volume or congestion length collected by a vehicle detector installed on the road. There is an automatic control method that calculates the display time and sequentially switches the signal display of the signal lamp.

  In order to maintain smooth traffic even at intersections where the above-mentioned automatic control system is not used, for example, a police officer or the like determines the timing of signal change and manually operates the traffic light. There is a manual control method that sequentially switches the signal display.

  Further, when a manual stepping operation is received with a predetermined signal display (step), the time point of the signal display step is determined, and the remaining signal display after the determined signal display is sequentially controlled to automatically advance. There has been disclosed a traffic signal controller capable of reducing traffic congestion by taking advantage of the automatic control method and the manual control method by providing a semi-automatic control unit (see Patent Document 1).

JP 2013-149167 A

  However, depending on the country or region, manual operation (manual control) by police officers is still performed in a time zone (for example, a morning and evening time zone) in which the traffic volume at the intersection becomes a peak. A CCTV camera for monitoring or an image sensor for measuring traffic volume is installed at the intersection, and the police officer determines the signal switching timing while watching the video near the intersection. However, even when the video can be confirmed, the timing of when the traffic volume has decreased, that is, the timing of ending the green light is often based on the subjectivity of individual police officers, and there is no clear indicator .

  The present invention has been made in view of such circumstances, and provides an information providing apparatus that provides information for determining the timing to end a green signal, a computer program for realizing the information providing apparatus, and the computer program. It is an object to provide a recorded recording medium and an information providing method.

  (1) An information providing apparatus according to an embodiment of the present invention includes a number acquisition unit that acquires the number of vehicles passing through a predetermined position in a predetermined lane of an inflow channel that flows into an intersection, and a signal that acquires signal information of the intersection The number of vehicles passing through the predetermined position between the information acquisition unit and the first time point to the second time point after the start of the green signal for the inflow path is updated a plurality of times while updating the second time point until the end of the green signal. A specifying unit for specifying and a display unit for displaying information on the number of vehicles per predetermined time passing through the predetermined position based on the number of vehicles specified by the specifying unit each time the second time point is updated.

  (12) A computer program according to an embodiment of the present invention is a computer program for causing a computer to provide information related to the number of vehicles, and passes the computer through a predetermined position in a predetermined lane of an inflow path flowing into an intersection. A vehicle number acquisition unit that acquires the number of vehicles to be transmitted, a signal information acquisition unit that acquires signal information of the intersection, and the predetermined position between the first time point and the second time point after the start of the green light for the inflow path A specifying unit for specifying the number of vehicles to be updated a plurality of times while updating the second time point until the end of the green light, and a predetermined time for passing the predetermined position based on the specified number of vehicles each time the second time point is updated It makes it function as a production | generation part which produces | generates in order to display the information which concerns on the number of win vehicles on a display part.

  (13) A recording medium according to an embodiment of the present invention is a non-transitory recording medium readable by a computer in which a computer program for causing a computer to provide information on the number of vehicles is recorded. The computer program includes a number acquisition unit that acquires the number of vehicles passing a predetermined position in a predetermined lane of an inflow path that flows into an intersection, a signal information acquisition unit that acquires signal information of the intersection, and the inflow path A specifying unit that specifies the number of vehicles passing through the predetermined position between a first time point and a second time point after the start of the green light, a plurality of times while updating the second time point until the end of the green light; Each time the time is updated, information on the number of vehicles per predetermined time passing through the predetermined position is generated to be displayed on the display unit based on the specified number of vehicles. To function as a generator.

  (14) In the information providing method according to the embodiment of the present invention, the number acquisition unit acquires the number of vehicles passing through a predetermined position of a predetermined lane of the inflow channel flowing into the intersection, and signal information of the intersection is signaled The number of vehicles passing through the predetermined position between the step acquired by the information acquisition unit and the first time point to the second time point after the start of the green light for the inflow path is updated until the end of the green light. However, each time the second time point is updated, the display unit displays information relating to the number of vehicles per predetermined time passing through the predetermined position based on the specified number of vehicles each time the specifying unit specifies a plurality of times. Steps.

  According to the present invention, it is possible to provide information for determining the timing for terminating the green light.

It is a block diagram which shows an example of a structure of the information provision system containing the information provision apparatus of this Embodiment. It is a block diagram which shows an example of a structure of the portable information processing apparatus as an information provision apparatus of this Embodiment. It is a schematic diagram which shows an example of the intersection which concerns on the information which the portable information processing apparatus of this Embodiment provides. It is a schematic diagram which shows an example of the screen displayed on the display part of the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows an example of the image | video of the vehicle displayed on the display part of the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 1st Example of the information which concerns on the flow rate displayed on the display part of the portable information processing apparatus of this Embodiment. It is explanatory drawing which shows an example of the relationship between the accumulated traffic after a green signal start, and a flow rate. It is a schematic diagram which shows the 1st Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 1st Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 1st Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 1st Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 1st Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 2nd Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 3rd Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 4th Example of visualization by the portable information processing apparatus of this Embodiment. It is a schematic diagram which shows the 5th Example of visualization by the portable information processing apparatus of this Embodiment. It is explanatory drawing which shows the other example of the relationship between the accumulated traffic after a green signal start, and a flow rate. It is a flowchart which shows an example of the process sequence of the portable information processing apparatus of this Embodiment. It is a flowchart which shows an example of the process sequence of the portable information processing apparatus of this Embodiment.

[Description of Embodiment of Present Invention]
(1) An information providing apparatus according to an embodiment of the present invention includes a number acquisition unit that acquires the number of vehicles passing through a predetermined position in a predetermined lane of an inflow channel that flows into an intersection, and a signal that acquires signal information of the intersection The number of vehicles passing through the predetermined position between the information acquisition unit and the first time point to the second time point after the start of the green signal for the inflow path is updated a plurality of times while updating the second time point until the end of the green signal. A specifying unit for specifying and a display unit for displaying information on the number of vehicles per predetermined time passing through the predetermined position based on the number of vehicles specified by the specifying unit each time the second time point is updated.

  (12) A computer program according to an embodiment of the present invention is a computer program for causing a computer to provide information related to the number of vehicles, and passes the computer through a predetermined position in a predetermined lane of an inflow path flowing into an intersection. A vehicle number acquisition unit that acquires the number of vehicles to be transmitted, a signal information acquisition unit that acquires signal information of the intersection, and the predetermined position between the first time point and the second time point after the start of the green light for the inflow path A specifying unit for specifying the number of vehicles to be updated a plurality of times while updating the second time point until the end of the green light, and a predetermined time for passing the predetermined position based on the specified number of vehicles each time the second time point is updated It makes it function as a production | generation part which produces | generates in order to display the information which concerns on the number of win vehicles on a display part.

  (13) A recording medium according to an embodiment of the present invention is a non-transitory recording medium readable by a computer in which a computer program for causing a computer to provide information on the number of vehicles is recorded. The computer program includes a number acquisition unit that acquires the number of vehicles passing a predetermined position in a predetermined lane of an inflow path that flows into an intersection, a signal information acquisition unit that acquires signal information of the intersection, and the inflow path A specifying unit that specifies the number of vehicles passing through the predetermined position between a first time point and a second time point after the start of the green light, a plurality of times while updating the second time point until the end of the green light; Each time the time is updated, information on the number of vehicles per predetermined time passing through the predetermined position is generated to be displayed on the display unit based on the specified number of vehicles. To function as a generator.

  (14) In the information providing method according to the embodiment of the present invention, the number acquisition unit acquires the number of vehicles passing through a predetermined position of a predetermined lane of the inflow channel flowing into the intersection, and signal information of the intersection is signaled The number of vehicles passing through the predetermined position between the step acquired by the information acquisition unit and the first time point to the second time point after the start of the green light for the inflow path is updated until the end of the green light. However, each time the second time point is updated, the display unit displays information relating to the number of vehicles per predetermined time passing through the predetermined position based on the specified number of vehicles each time the specifying unit specifies a plurality of times. Steps.

  The number acquisition unit acquires the number of vehicles passing through a predetermined position in a predetermined lane of the inflow path flowing into the intersection. When there are a plurality of lanes on the inflow path, the predetermined lane may be any one lane, for example, a typical lane, or a dedicated lane such as a right turn lane or a left turn lane. The predetermined lane may be an entire lane. The predetermined position can be a stop line before the intersection or a point a required distance from the intersection. The number-of-units acquisition unit can acquire the number of vehicles from, for example, a vehicle detector installed near the stop line at the intersection.

  The signal information acquisition unit acquires signal information of the intersection. The signal information includes information such as a switching order of each signal display such as a blue signal, a yellow signal, and a red signal, and a display time of each signal display.

  The specifying unit specifies the number of vehicles passing through the predetermined position between the first time point and the second time point after the start of the green light for the inflow path, while updating the second time point until the end of the green light. When the time from the first time point to the second time point is represented by M (seconds), and the update period of the second time point is represented by N (seconds), the specifying unit can obtain the past M (seconds) every N (seconds). ) To specify the number of vehicles passing a predetermined position (for example, a stop line).

  Each time the second time point is updated, the display unit displays information related to the number of vehicles per predetermined time passing through a predetermined position based on the number of vehicles specified by the specifying unit. The number of vehicles per predetermined time includes the flow rate. The number of vehicles per predetermined time can be, for example, the number of vehicles per 30 seconds. The flow rate can be obtained by converting the number of vehicles per predetermined time, for example, per second or per hour. Information may be displayed as an analog meter, for example, in a bar format such as a bar graph, or may be displayed as a digital meter. Further, the indicator lamp may be turned on.

  With the above-described configuration, the information related to the number of vehicles per predetermined time is repeatedly updated and displayed at the update cycle N (seconds), so that an increase or decrease in the flow rate can be easily recognized. In particular, it can be used as an indicator of how much the information related to the number of vehicles per predetermined time is reduced to the end timing of the green signal, so that information for determining the timing for ending the green signal can be provided. it can.

  (2) In the information providing apparatus according to the embodiment of the present invention, the display unit continues to display information satisfying a predetermined condition among the information displayed every time the second time point is updated until the predetermined time point. It is.

  A display part continues the display of the information which satisfy | fills a predetermined condition among the information displayed whenever it updates a 2nd time point to a predetermined time point. The information that satisfies the predetermined condition can be, for example, information when the number of vehicles per predetermined time is maximum, that is, the maximum flow rate. The predetermined time point is a time point when the green signal ends after the green signal starts. That is, when the flow rate increases after the start of the green signal and once decreases and then decreases, the information indicating the maximum flow rate is continuously displayed until the end of the green signal. With this configuration, when the flow rate decreases after reaching the maximum value over time, it is easy to see how much the flow rate is decreasing with respect to the maximum value, and the blue signal is terminated. It is possible to easily determine the timing to be performed.

  (3) The information providing apparatus according to the embodiment of the present invention determines, as the predetermined condition, a case where the number of vehicles per predetermined time is maximum after the start of the green signal and until the end of the green signal. Is provided.

  The determination unit determines, as a predetermined condition, a case where the number of vehicles per predetermined time becomes maximum after the start of the green signal and before the end of the green signal. As a result, it is possible to easily recognize how much the flow rate has decreased with respect to the maximum value, and it is possible to easily determine the timing for ending the green light.

  (4) In the information providing apparatus according to the embodiment of the present invention, the maximum value of the number of vehicles per predetermined time passing through the predetermined position between the start of the green signal and the end of the green signal is set to a plurality of signal cycles. The display unit displays information related to the representative value of the maximum value stored in the storage unit.

  A memory | storage part memorize | stores the maximum value of the number of vehicles per predetermined time which passes a predetermined position after the start of a green signal until the completion | finish of the said green signal over several signal cycles. The plurality of signal cycles may be, for example, a collection of signal cycles in a certain time zone of the day (for example, 8am, 6pm, etc.). It may be collected over one week or one month. That is, the storage unit stores the maximum flow rate for each signal cycle in a certain time zone, or the maximum flow rate for each signal cycle in a certain time zone over one week or one month.

  The display unit displays information related to the representative value of the maximum value stored in the storage unit. The representative value can be, for example, an average value, a median value, a mode value, or the like. That is, since the display unit displays the representative value of the past maximum flow rate, it is possible to easily see how much the flow rate has decreased with respect to the past maximum value, and the timing for ending the green signal. Judgment can be easily made.

  (5) In the information providing apparatus according to the embodiment of the present invention, when the number of vehicles per predetermined time is equal to or less than a predetermined threshold, the display unit displays that the threshold is equal to or less than the threshold. is there.

  A display part displays that it became below the threshold value, when the number of vehicles per predetermined time became below a predetermined threshold value. The predetermined threshold can be a ratio (less than 100%) to the maximum flow rate, for example, 80% of the maximum flow rate, but is not limited thereto. With such a configuration, when the flow rate is maximized and then decreases, it is displayed that the predetermined threshold value or less is displayed. It can be avoided that the end timing of the green light is determined by the individual judgment of a person (for example, a police officer).

  (6) In the information providing apparatus according to the embodiment of the present invention, each time the second time point is updated, the display unit displays that the number of vehicles per predetermined time is decreased. It is.

  Whenever the number of vehicles per predetermined time decreases every time the second time point is updated, the display unit displays a decrease. That is, the display unit displays that the flow rate is decreasing when the flow rate is decreasing at every update cycle. As a result, even if it is difficult to determine whether or not the flow rate is decreasing only from the image of the vehicle passing near the intersection, it is possible to accurately grasp the decrease in the flow rate.

  (7) In the information providing apparatus according to the embodiment of the present invention, each time the second time point is updated, the display unit displays that the number of vehicles per predetermined time increases. It is.

  Each time the second time point is updated, the display unit displays that the number of vehicles per predetermined time increases. That is, the display unit displays that the flow rate is increasing when the flow rate is increasing at every update cycle. As a result, even if it is difficult to determine whether or not the flow rate is increasing from only the image of the vehicle passing near the intersection, it is possible to accurately grasp the increase in the flow rate.

  (8) In the information providing apparatus according to the embodiment of the present invention, the first time point is a start time point of the green light.

  The first time is the start time of the green light. In other words, the specifying unit specifies the number of vehicles passing through a predetermined position between the start time of the green signal for the inflow path and the second time point a plurality of times while updating the second time point until the end of the green signal. Each time the second time point is updated, the time from the start point of the green light to the second time point becomes longer, so even if the number of vehicles passing through the predetermined position fluctuates, it is smoothed for a long time and the flow rate is stabilized. Can be obtained.

  (9) In the information providing apparatus according to the embodiment of the present invention, the first time point is a time point that is a first predetermined time before the second time point.

  The first time point is a time point that is a first predetermined time before the second time point. In other words, the specifying unit specifies the number of vehicles passing through the predetermined position during the first predetermined time period from the second time point a plurality of times while updating the second time point until the end of the green light. The first predetermined time can be, for example, 30 seconds, but is not limited thereto. When the first predetermined time is shortened, the flow rate is obtained based on the number of vehicles passing through the predetermined position during a short time, so that the fluctuation of the flow rate can be increased. On the other hand, when the first predetermined time is lengthened, the flow rate is obtained based on the number of vehicles passing through the predetermined position for a long time, so that fluctuation of the flow rate can be reduced. With this configuration, it becomes possible to easily recognize the change in the flow rate according to the traffic volume of the inflow path flowing into the intersection.

  (10) In the information providing apparatus according to the embodiment of the present invention, the display unit displays an image obtained by imaging the inflow path together with information on the number of vehicles per predetermined time. .

  The display unit displays an image obtained by imaging the inflow path along with information on the number of vehicles per predetermined time. Information related to the number of vehicles per predetermined time is displayed repeatedly with an update cycle N (seconds), along with images of vehicles passing near the intersection, so that changes in flow rate can be recognized more easily and accurately. can do.

  (11) In the information providing apparatus according to the embodiment of the present invention, the display unit displays information related to the number of vehicles per predetermined time after a time longer than the predetermined time from the start time of the green signal. It is like that.

  The display unit displays information related to the number of vehicles per predetermined time after the elapse of a time longer than the predetermined time from the start of the green light. Since the time from the start of the green light to the predetermined time is in the process of obtaining the number of vehicles per predetermined time, the timing for displaying information relating to the number of vehicles per predetermined time is displayed after a time longer than the predetermined time has elapsed. By doing so, information relating to the number of vehicles per predetermined time can be accurately displayed.

[Details of the embodiment of the present invention]
Hereinafter, an information providing apparatus, a computer program, a recording medium, and an information providing method according to embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a block diagram illustrating an example of a configuration of an information providing system including the information providing apparatus according to the present embodiment. The information providing system includes a portable information processing device 50 as an information providing device, a traffic signal controller 100, signal lamps 201 and 202, a vehicle detector 2, and the like.

  The server 1 is installed in a traffic control center, for example, and calculates the operation timing of each traffic signal controller for smooth traffic flow on the road based on traffic data such as traffic volume or traffic jam information. The calculated operation timing is transmitted to the traffic signal controller 100 as operation command information (information relating to signal control including signal control parameters and the like).

  The vehicle detector 2 is installed at a required position (for example, in the vicinity of the stop line) of the inflow path that flows into the intersection, and acquires a predetermined pulse position (for example, the predetermined lane of the inflow path that flows into the intersection by acquiring a sensing pulse signal). , Sensor information such as the number of vehicles passing through the stop line (traffic volume), occupation rate, and the like are calculated, and the calculated sensor information is transmitted to the sensor interface 12 of the traffic signal controller 100.

  In addition, an image type vehicle detector 2 provided with an imaging device is installed in the vicinity of the intersection. The image-type vehicle detector 2 obtains sensing pulse signals to calculate sensing information such as traffic volume (number of vehicles) and occupancy rate, and the calculated sensing information is used as a sensor interface 12 of the traffic signal controller 100. Send to. The image-type vehicle sensor 2 connects video data (including moving images or still images) obtained by imaging each inflow path flowing into the intersection to a network such as Ethernet (registered trademark), for example. For transmission to the portable information processing apparatus 50 via the wireless communication unit 4 (wireless router) having a communication interface function such as the HUB 3 and the cellular phone network. The ultrasonic vehicle sensor calculates sensing information such as traffic volume and occupancy based on the sensing pulse signal, and transmits the calculated sensing information to the sensor interface 12 and also the ultrasonic vehicle sensing. The imaging apparatus installed separately from the device may transmit the captured video data to the portable information processing apparatus 50 via the wireless communication unit 4.

  The traffic signal controller 100 receives sensing information (vehicle sensing information) from the vehicle detector 2 and the communication interface 11 that communicate with the server 1 and the portable information processing device 50 via a network such as the CPU 10 and Ethernet (registered trademark). A sensor interface 12, a timer circuit 13, a step counter 14 for sequentially specifying signal display of the signal lamp, a stage memory 15 for storing signal information, a stage memory reading circuit 16, and the like.

  The sensor interface 12 acquires vehicle detection information and the like from the vehicle sensor 2.

  The communication interface 11 receives the operation command information transmitted from the server 1. Further, the communication interface 11 receives a command generated and transmitted by the portable information processing device 50 via the wireless communication unit 4 and the HUB 3. The command transmitted by the portable information processing device 50 is, for example, a command for switching signals. Further, the communication interface 11 transmits the vehicle detection information acquired from the vehicle detector 2 to the server 1 via the HUB 3.

  The CPU 10 or the server 1 sends the traffic information along with the road map information in the target road network, signal information including the stage floor map, intersection identification information and position information in the road network via the HUB 3 and the wireless communication unit 4. Then, the information is transmitted to the portable information processing device 50.

  The timer circuit 13 is driven based on a clock signal (not shown), measures a unit time of a step (for example, 1 second) according to the setting, and outputs a unit time signal (for example, a clock with a period of 1 second) to the step counter 17. To do.

  Based on the operation command information transmitted from the server 1 or the command transmitted from the portable information processing device 50, the CPU 10 outputs a step command that is a timing signal for switching the color of the signal lamps 201 and 202 to the step counter 14. To send. The step command is a command to advance the signal display to the next signal display (advance the step to the next step).

  The step counter 14 sequentially specifies the steps of the signal lamps 201 and 202 based on the step command sent from the CPU 10. Specifically, the step counter 14 measures a step based on a step command sent from the CPU 10 and generates a step signal. The step counter 14 outputs the generated step signal to the stage memory reading circuit 16. Note that counting a step means sequentially stepping to the next step while pointing to the current step.

  The stage memory reading circuit 16 reads the signal information stored in the stage memory 15 based on the step signal output from the step counter 14 and outputs the lamp color to each of the signal lamps 201 and 202 based on the read signal information. Do.

  FIG. 2 is a block diagram showing an example of the configuration of the portable information processing apparatus 50 as the information providing apparatus of the present embodiment. The portable information processing device 50 according to the present embodiment is, for example, a mobile phone, a smartphone, a tablet terminal device, a notebook personal computer, or the like. The portable information processing device 50 includes a CPU 51, a communication unit 52, a display unit 53, a storage unit 54, an operation unit 55, and the like. The CPU 51 includes a specifying unit 511, a determination unit 512, and the like. In addition, the communication unit 52 includes a number acquisition unit 521, a signal information acquisition unit 522, and the like.

  The communication unit 52 has a communication interface function such as, for example, a wireless LAN and a mobile phone network. The communication unit 52 communicates with the traffic signal controller 100, the vehicle detector 2, and the server 1 via the HUB 3 and the wireless communication unit 4. Wireless communication can be performed. The portable information processing device 50 and the traffic signal controller 100 may be connected by a cable or the like so as to perform wired communication.

  The communication unit 52 also has a function as an interface for downloading the computer program of the present embodiment from an application server (not shown) on the Internet using a communication interface function such as a wireless LAN or a mobile phone network. Have.

  The storage unit 54 includes a solid state drive (SSD) or a hard disk drive (HDD) in addition to a RAM, a ROM, and the like. The storage unit 54 can store signal information transmitted by the traffic signal controller 100 and vehicle detection information of the vehicle detector 2. The storage unit 54 can store the computer program according to the present embodiment, and the CPU 51 can execute the stored computer program.

  The display unit 53 includes a liquid crystal panel. The liquid crystal panel of the display unit 53 is, for example, a touch panel, and the display unit 53 outputs an operation signal to the operation unit 55 by directly operating an icon, button, bar, or the like displayed on the liquid crystal panel with a finger.

  The operation unit 55 analyzes the operation signal and outputs the analysis result to the CPU 51. The liquid crystal panel is not limited to a touch panel.

  FIG. 3 is a schematic diagram illustrating an example of an intersection related to information provided by the portable information processing device 50 according to the present embodiment. As shown in FIG. 3, a plurality of inflow paths R1, R2, R3, and R4 flow into the intersection. The inflow paths R2 and R4 are inflow paths facing each other, and the signal lamp 201 is provided for the inflow paths R2 and R4. The inflow paths R1 and R3 are inflow paths facing each other, and the inflow paths R1 and R3 In contrast, a signal lamp 202 is provided. Each inflow channel has two lanes on one side, but the number of lanes is not limited to the example of FIG.

  The shape of the intersection is not limited to the example of FIG. 3 and may be a three-way road, a five-way road, or the like. Moreover, FIG. 3 is an example in the case of left-hand traffic, and in the case of right-hand traffic, the lane is reversed left and right.

  The number acquisition unit 521 acquires the number of vehicles passing through a predetermined position in a predetermined lane of the inflow path flowing into the intersection from the vehicle detector 2 via the wireless communication unit 4. When there are a plurality of lanes on the inflow path, the predetermined lane may be any one lane, for example, a typical lane, or a dedicated lane such as a right turn lane or a left turn lane. The predetermined lane may be an entire lane. The predetermined position can be a stop line before the intersection, but is not limited to the stop line, and may be a point at a required distance from the intersection, for example. In the present embodiment, the predetermined position is described as a stop line.

  The signal information acquisition unit 522 acquires signal information of the intersection via the wireless communication unit 4. The signal information includes information such as a switching order of each signal display such as a blue signal, a yellow signal, and a red signal, and a display time of each signal display.

  The identification unit 511 identifies the number of vehicles passing through the stop line between the first time point and the second time point after the start of the green signal for the inflow path, while updating the second time point until the end of the green signal. When the time from the first time point to the second time point is represented by M (seconds), and the update period of the second time point is represented by N (seconds), the specifying unit 511 performs the past M ( Number of vehicles passing the stop line in seconds).

  Each time the second time point is updated under the control of the CPU 51, the display unit 53 displays information relating to the number of vehicles per predetermined time passing through the stop line based on the number of vehicles specified by the specifying unit 511. The number of vehicles per predetermined time includes the flow rate. The number of vehicles per predetermined time can be, for example, the number of vehicles per 30 seconds. The flow rate can be obtained by converting the number of vehicles per predetermined time, for example, per second or per hour.

  The “information relating to the number of vehicles per predetermined time” can be information that can read “the number of vehicles per predetermined time (including the flow rate)” regardless of the display mode. Information may be displayed as an analog meter, for example, in a bar format such as a bar graph, or may be displayed as a digital meter. Further, the indicator lamp may be turned on.

  With the above-described configuration, information related to the number of vehicles per predetermined time (including the flow rate) is repeatedly updated and displayed at the update cycle N (seconds), so that an increase or decrease in the flow rate can be easily recognized. be able to. In particular, it can be used as an indicator of how much the information relating to the flow rate is reduced to determine the end timing of the green signal, so that it is possible to provide information for determining the timing to end the green signal.

  Next, a screen displayed on the display unit 53 of the portable information processing device 50 according to the present embodiment will be described. FIG. 4 is a schematic diagram illustrating an example of a screen displayed on the display unit 53 of the portable information processing device 50 according to the present embodiment. FIG. 4 corresponds to the intersection illustrated in FIG. That is, the screen is divided into four parts for each of the inflow paths R1, R2, R3, and R4. For the inflow path R1, an image of a vehicle traveling on the inflow path R1 is displayed at a position indicated by reference numeral P1, and information relating to the number of vehicles per predetermined time is displayed at a position indicated by reference numeral G1. The same applies to the inflow channels R2, R3, R4.

  Further, it is possible to manually switch signals by operating the “signal switch” icon or button. For example, if it is determined that it is the end timing of the green light and the “signal switch” icon or button is operated, the green light is interrupted.

  FIG. 5 is a schematic diagram illustrating an example of a vehicle image displayed on the display unit 53 of the portable information processing device 50 according to the present embodiment. FIG. 5 shows an image of a vehicle traveling on an inflow path including a stop line (any one of R1 to R4). The video shown in FIG. 5 is displayed at the locations indicated by the symbols P1 to P4 illustrated in FIG. The video may be a moving image or a still image having a predetermined cycle (for example, 0.5 seconds, 1 second, etc.). FIG. 5 schematically shows three images for convenience. In FIG. 5, the diagram on the left shows a state after t1 (seconds) from the start of the green light, and shows a state where the number of vehicles traveling on the inflow path is slightly large. The middle figure shows a state after t2 (second, t2> t1) from the start of the green light, and shows a state where the number of vehicles traveling on the inflow path is larger. The figure on the right shows a state after t3 (second, t3> t2) from the start of the green light, and shows a state where the number of vehicles traveling on the inflow path has slightly decreased after the peak. The video shown in FIG. 5 is displayed for each inflow path from the start to the end of the green signal. Moreover, as shown in FIG. 5, the present signal lamp color with respect to an inflow path can also be displayed. As a result, even if the person using the portable information processing device 50 (for example, a police officer) has to work in a place where the actual signal light color is not visible or difficult to see, the current signal light color can be easily confirmed. can do.

  FIG. 6 is a schematic diagram showing a first example of information relating to the number of vehicles per predetermined time displayed on the display unit 53 of the portable information processing device 50 of the present embodiment. The display shown in FIG. 6 is displayed at the locations indicated by the symbols G1 to G4 illustrated in FIG. In the example of FIG. 6, information related to the number of vehicles per predetermined time is represented as the number of vehicles per 30 seconds (number of vehicles / 30 seconds / 1 lane) per lane. As shown in FIG. 6, the information on the number of vehicles per predetermined time can be displayed like an analog speedometer of a car.

  Next, the relationship between accumulated traffic volume and flow rate will be described. FIG. 7 is an explanatory diagram showing an example of the relationship between the accumulated traffic volume after the start of the green light and the flow rate. In FIG. 7, the horizontal axis indicates time (seconds), and the vertical axis indicates the accumulated traffic volume per lane. The vehicle detector 2 installed near the stop line of the intersection measures the traffic volume of the vehicle passing the intersection (stop line), and this information is aggregated in units of N (= 1 to 5) seconds. , Data (vehicle sensing information) is transmitted to a device (server 1, traffic signal controller 100). The portable information processing device 50 receives the data and signal information (including the start time of the green light) collected by the vehicle sensor 2, thereby (1) cumulative traffic volume from the start of the green light, and (2) past M Information such as traffic volume per second can be obtained.

  Cumulative traffic is the cumulative number of vehicles that have passed the measurement point in the time after the measurement start time, and is the sum of all the values passing through the stop line divided by the `` cross-section cumulative traffic volume '', the number of lanes, or The total of the measured values in the representative lane is called “cumulative traffic per lane”. The flow rate is the slope of a curve indicating the accumulated traffic volume. Note that the measurement start time is the start time of the yellow signal before the blue signal, that is, in the case of a crossing intersection, the start time of the yellow signal on the crossing side (the previous yellow floor) (yellow signal start point) and the green signal There is a case of starting time (green light starting point), and the value of the yellow signal starting point is an index indicating the processing efficiency in the direction including the loss time (time when the vehicle cannot pass the intersection) at the time of signal switching. The value of the starting point is an index representing the processing efficiency in the direction in the green signal. In the following description, the green signal starting point is used.

  As shown in FIG. 7, the number of vehicles passing through the stop line gradually increases from the start of the green light, and the slope of the cumulative traffic curve increases. When the green time further passes, the number of vehicles passing through the stop line decreases and the slope of the cumulative traffic curve starts to decrease, so the flow rate starts to increase and then decreases to the maximum value (maximum flow rate). . The maximum flow rate appears just before the processing efficiency begins to drop.

  As described above, the specifying unit 511 updates the number of vehicles passing through the stop line between the first time point and the second time point after the start of the green signal for the inflow path while updating the second time point until the end of the green signal. Specify multiple times. When the time from the first time point to the second time point is represented by M (seconds), and the update period of the second time point is represented by N (seconds), the specifying unit 511 performs the past M ( Number of vehicles passing the stop line in seconds). As shown in FIG. 7, the slope of the straight line connecting the cumulative traffic value at the first time point and the cumulative traffic value at the second time point is the flow rate at the second time point, that is, from the second time point. Represents the slope of traffic volume for the past M seconds. Assuming the number of vehicles (traffic volume) V in the past M seconds, the flow rate is V / M (number of vehicles / second).

  Further, as shown in FIG. 7, the flow rate increases until the maximum flow rate point (maximum value of the number of vehicles per predetermined time), and the flow rate starts decreasing when the maximum flow rate point is exceeded. For example, police officers can determine when to stop green light while recognizing such changes in flow rates, and can provide clear criteria that do not rely on the individual police officer's subjectivity. For example, if the maximum flow rate A is recorded once and then the flow rate is once decreased and then increased again and a new maximum flow rate B is recorded, according to the change in traffic volume, the B is the maximum flow rate point. And As a result, the maximum flow rate point can be set to the maximum value in the target cycle from the start of the blue signal to the end of the green signal.

  Next, visualization of information (including the flow rate) related to the number of vehicles per predetermined time will be described. 8, 9, 10, 11, and 12 are schematic views showing a first example of visualization by the portable information processing device 50 according to the present embodiment. The visualization examples shown in FIGS. 8 to 12 are the same as those illustrated in FIG.

  8 to 12, the diagrams on the left side show changes in cumulative traffic volume per lane, and also show changes in flow rate on a curve representing the cumulative traffic volume. The time M between the first time point and the second time point is 30 seconds. 8 to 12, the diagrams on the right side show display examples of information related to the number of vehicles per predetermined time. Each time the information is updated N (N = 1 to 5 seconds), the passing number or flow rate of the past M (M = 30) seconds is displayed with a needle like an analog speedometer and a semicircular graph. The example in the figure shows the number of vehicles per 30 seconds per lane, and V represents the traffic volume (number of vehicles) for M seconds. When the flow rate is illustrated, for example, a value of V / M (number / second) or V / M × 3600 (number / hour) may be displayed.

  The example of FIG. 8 shows a state 30 seconds after the start of the green light, and shows the number of vehicles in the past 30 seconds. The number of vehicles (flow rate) per predetermined time is relatively small. The example of FIG. 9 shows a state at the time when a plurality of update cycles N have passed. The number of vehicles (flow rate) per predetermined time is increasing. In the examples of FIGS. 8 and 9, in order to indicate that the number of vehicles per predetermined time is increasing, for example, the needle color can be displayed in green.

  Whenever the number of vehicles per predetermined time increases under the control of the CPU 51, the display unit 53 displays that the number of vehicles increases. That is, the display unit 53 displays that the flow rate is increasing when the flow rate is increasing at every update cycle. As a result, even if it is difficult to determine whether or not the flow rate is increasing from only the image of the vehicle passing near the intersection, it is possible to accurately grasp the increase in the flow rate.

  The example of FIG. 10 shows a state at the time when a plurality of update cycles N have passed. The number of vehicles (flow rate) per predetermined time is the maximum.

  The example of FIG. 11 shows a state at the time when a plurality of update cycles N have passed. The number of vehicles (flow rate) per predetermined time is decreasing from the maximum value. When the number of vehicles (flow rate) per predetermined time decreases beyond the maximum value, an afterimage of the highest point (maximum value of vehicle number, maximum flow rate) is displayed as shown in FIG. The police officer can compare the afterimage of the highest point (the highest point in the current green light) with the current value, and therefore can accurately determine the timing at which the green light is terminated. Further, when the current value is less than 90% with respect to the highest point, the needle is changed from green to yellow, for example. The police officer can determine that the current value is decreasing, and can predict that it will soon be the timing at which the green light will stop.

  Under the control of the CPU 51, the display unit 53 displays that the number of vehicles per predetermined time decreases when the second time point is updated. That is, the display unit 53 displays that the flow rate is decreasing when the flow rate is decreasing at every update cycle. As a result, even if it is difficult to determine whether or not the flow rate is decreasing only from the image of the vehicle passing near the intersection, it is possible to accurately grasp the decrease in the flow rate.

  The example of FIG. 12 shows a state at the time when a plurality of update cycles N have passed. The number of vehicles (flow rate) per predetermined time is further decreasing. As shown in FIG. 12, for example, when the current value falls below 80% with respect to the highest point in the current green light, the needle is changed from, for example, yellow to red. The police officer can determine that the current value is the timing at which the green light is terminated. When the current value falls below, for example, 75%, a decrease in the flow rate of the police officer may be noticed by blinking a semicircular needle plate or outputting a voice.

  As described above, the display unit 53 displays the information satisfying the predetermined condition among the information related to the number of vehicles per predetermined time displayed every time the second time is updated under the control of the CPU 51 until the predetermined time. continue. The information that satisfies the predetermined condition can be, for example, information when the number of vehicles per predetermined time is maximum, that is, the maximum flow rate. The predetermined time point is a time point when the green signal ends after the green signal starts.

  That is, when the flow rate increases after the start of the green signal and once decreases and then decreases, the information indicating the maximum flow rate is continuously displayed until the end of the green signal. With this configuration, when the flow rate decreases after reaching the maximum value over time, it is easy to see how much the flow rate is decreasing with respect to the maximum value, and the blue signal is terminated. It is possible to easily determine the timing to be performed.

  The determination unit 512 determines, as the above-described predetermined condition, a case where the number of vehicles per predetermined time becomes maximum after the start of the green signal and before the end of the green signal. As a result, it is possible to easily recognize how much the flow rate has decreased with respect to the maximum value, and it is possible to easily determine the timing for ending the green light.

  Moreover, the display part 53 displays that it became below the threshold value, when the number of vehicles per predetermined time became below a predetermined threshold value under control of CPU51. For example, when the current value of the number of vehicles (flow rate) per predetermined time falls below 80% of the highest point of the current green light as shown in FIG. Say. The predetermined threshold can be a predetermined ratio (less than 100%) with respect to the maximum flow rate, for example, 80% of the maximum flow rate, but is not limited thereto. With this configuration, as illustrated in FIG. 12, when the flow rate becomes maximum and then decreases, it is displayed that the flow rate is below a predetermined threshold value. By defining the timing, it is possible to avoid the end timing of the green light being determined by the individual judgment of a person (for example, a police officer).

  In the above example, the first time point is a time point that is a first predetermined time (M seconds) before the second time point. That is, the specifying unit 511 specifies the number of vehicles passing through a predetermined position during the past first predetermined time (past M seconds) from the second time point a plurality of times while updating the second time point until the end of the green light. The first predetermined time M can be set to, for example, 30 seconds in order to suppress fluctuations in traffic, but is not limited to this.

  When the first predetermined time (M seconds) is shortened, the flow rate is obtained based on the number of vehicles passing through the predetermined position during the short time, so that the fluctuation of the flow rate can be increased. On the other hand, when the first predetermined time (M seconds) is lengthened, the flow rate is obtained based on the number of vehicles passing through the predetermined position over a long time, so that fluctuations in the flow rate can be reduced. With this configuration, it becomes possible to easily recognize the change in the flow rate according to the traffic volume of the inflow path flowing into the intersection.

  In addition, as shown in FIG. 4, the display unit 53 displays an image obtained by imaging the inflow path along with information on the number of vehicles per predetermined time. Information related to the number of vehicles per predetermined time is displayed repeatedly with an update cycle N (seconds), along with images of vehicles passing near the intersection, so that changes in flow rate can be recognized more easily and accurately. can do.

  In addition, the display unit 53 displays information related to the number of vehicles per predetermined time after a time longer than the predetermined time has elapsed since the start of the green signal. Since the time from the start of the green light to the predetermined time is in the process of obtaining the number of vehicles per predetermined time, the timing for displaying information relating to the number of vehicles per predetermined time is displayed after a time longer than the predetermined time has elapsed. By doing so, information relating to the number of vehicles per predetermined time can be accurately displayed.

  8 to 12, the maximum value of the number of vehicles per predetermined time (that is, the maximum flow rate) is displayed as the highest afterimage until the end of the green light, but the maximum number of vehicles ( The maximum flow rate is not limited to a value in real time. For example, past experience values can be displayed.

  FIG. 13 is a schematic diagram illustrating a second example of visualization by the portable information processing device 50 according to the present embodiment. In the example of FIG. 13, the highest point in the current green signal and the representative value of the highest point in the past green signal are displayed.

  The storage unit 54 stores a maximum value of the number of vehicles per predetermined time passing through a predetermined position between the start of the green signal and the end of the green signal over a plurality of signal cycles. The plurality of signal cycles may be, for example, a collection of signal cycles in a certain time zone of the day (for example, 8am, 6pm, etc.). It may be collected over one week or one month. That is, the memory | storage part 54 memorize | stores the maximum flow rate for every signal cycle of a certain time slot | zone, or the maximum flow rate for every signal cycle of a certain time slot | zone over one week or one month.

  The display unit 53 displays information related to the representative value of the maximum value stored in the storage unit 54 under the control of the CPU 51. The representative value can be, for example, an average value, a median value, a mode value, or the like. That is, since the display unit 53 displays the representative value of the past maximum flow rate, it is possible to easily see how much the current flow rate has decreased with respect to the past maximum value, and the green signal is terminated. It is possible to easily determine the timing to be performed. In the example of FIG. 13, the highest point in the current green signal and the representative value of the highest point in the past green signal are displayed, but only the representative value of the highest point in the past green signal may be displayed. Good.

  FIG. 14 is a schematic diagram illustrating a third example of visualization by the portable information processing device 50 according to the present embodiment. In the third embodiment, the number of vehicles per predetermined time (including the flow rate) is displayed by a semicircular graph without displaying the hands. In the example of FIG. 14, for example, when the number of vehicles per predetermined time increases, it is displayed in green and the afterimage of the highest point is continuously displayed until the end of the green signal. In addition, when the number of vehicles per predetermined time falls below 90% of the highest point, it changes from green to yellow, and when it falls below 80% of the highest point, it changes from yellow to red, The same effect as in the first embodiment can be obtained.

  FIG. 15 is a schematic diagram illustrating a fourth example of visualization by the portable information processing device 50 according to the present embodiment. In the fourth embodiment, instead of a semicircular graph, the number of vehicles (including the flow rate) per predetermined time is displayed by a bar graph (bar format). In the example of FIG. 15, for example, when the number of vehicles per predetermined time increases, the bar is displayed in green and the highest afterimage is continuously displayed until the end of the green signal. In addition, if the number of vehicles per predetermined time falls below 90% of the maximum score, the bar is changed from green to yellow, and if it falls below 80% of the maximum score, the bar is changed from yellow to red. To do. Thereby, the same effect as in the first embodiment can be obtained.

  In the first to fourth embodiments described above, the number of vehicles (including the flow rate) per predetermined time is displayed like an analog meter. However, the present invention is not limited to this. For example, the maximum number and the current number of vehicles (including the flow rate) per predetermined time may be displayed as digital values. In this case, when the number of vehicles per predetermined time increases, the number is displayed in green and the highest afterimage is continuously displayed until the end of the green signal. Also, if the number of vehicles per given time falls below 90% of the maximum score, the number will be changed from green to yellow, and if it falls below 80% of the maximum score, the number will be changed from yellow to red. To do. Thereby, the same effect as in the first embodiment can be obtained.

  FIG. 16 is a schematic diagram illustrating a fifth example of visualization by the portable information processing device 50 according to the present embodiment. As shown in FIG. 16, the display unit 53 includes an indicator lamp such as a light bulb or an LED, and can emit red, yellow, and green light. When the number of vehicles per predetermined time increases, the green indicator light is turned on, and when the number of vehicles per predetermined time decreases, the yellow indicator light is turned on. Further, when the number of vehicles per predetermined time falls below 80% of the maximum point, a red indicator lamp is turned on. Thereby, the same effect as in the first embodiment can be obtained.

  In the fifth embodiment, a configuration including only red and yellow indicator lights or a configuration including only a red indicator lamp may be employed. Thereby, it can be set as a simpler structure. Further, when the number of vehicles per predetermined time falls below 75% of the maximum score, the red indicator lamp may be blinked and the luminance may be increased. This can alert police officers.

  In the above-described embodiment, the specifying unit 511 updates the number of vehicles passing through the stop line between the first time point and the second time point after the start of the green signal for the inflow path until the second time point is reached until the end of the green signal. However, in the case of specifying a plurality of times, the first time point is a time point that is a first predetermined time (M seconds) before the second time point, but is not limited thereto. For example, the first time point may be fixed to the start time point of the green light.

  FIG. 17 is an explanatory diagram showing another example of the relationship between the accumulated traffic volume after the start of the green light and the flow rate. As shown in FIG. 17, the first time point is the start time point of the green light. That is, the specifying unit 511 specifies the number of vehicles passing through a predetermined position between the start time point of the green signal for the inflow path and the second time point a plurality of times while updating the second time point until the end of the green signal. Each time the second time point is updated, the time from the start point of the green light to the second time point becomes longer, so even if the number of vehicles passing through the predetermined position fluctuates, it is smoothed for a long time and the flow rate is stabilized. Can be obtained.

  Next, the operation of the portable information processing apparatus 50 according to the present embodiment will be described. 18 and 19 are flowcharts illustrating an example of a processing procedure of the portable information processing device 50 according to the present embodiment. In the following, for the sake of convenience, the processing subject will be described as the CPU 51. CPU51 acquires signal information (S11), and acquires the number of vehicles which pass the stop line of an intersection (S12). The CPU 51 determines whether or not M seconds (for example, 30 seconds) have elapsed since the start of the green signal (S13). If M seconds have not elapsed (NO in S13), the process of step S13 is continued.

  When M seconds have elapsed (YES in S13), the CPU 51 determines whether or not the update cycle N (N = 1 to 5 seconds) is reached (S14), and when it is not the update cycle N (NO in S14), step S14. Continue processing. When it is the update cycle N (YES in S14), the CPU 51 calculates the number of vehicles V that have passed the stop line in the past M seconds per lane (S15).

  The CPU 51 determines whether or not the vehicle number V is equal to or greater than the maximum number Vm (S16). The number maximum value Vm is the maximum value of the number V of vehicles that have passed the stop line in the past M seconds, and the initial value is 0. If V ≧ Vm (YES in S16), the CPU 51 assumes that the number of vehicles V has increased, sets the number of vehicles V to the maximum number of vehicles Vm (S17), displays the number of vehicles V in green (S18), Step S22 described later is performed.

  If V ≧ Vm is not satisfied (NO in S16), the CPU 51 determines whether or not V> Vm × 0.8 (S19), and if V> Vm × 0.8 (YES in S19), the vehicle Assuming that the number of vehicles V starts to decrease beyond the maximum value, an afterimage of the maximum number of vehicles Vm is left, the number of vehicles V is displayed in yellow (S20), and the process of step S22 described later is performed.

  If V> Vm × 0.8 is not satisfied (NO in S19), the CPU 51 leaves an afterimage of the maximum number of vehicles Vm, displays the number of vehicles V in red (S21), and performs the process of step S22 described later. The CPU 51 determines whether or not the green signal has ended (S22). If the green signal has not ended (NO in S22), the processing after step S14 is continued.

  When the green signal ends (YES in S22), the CPU 51 deletes the number display (S23), sets the maximum number Vm to 0 (S24), and determines whether or not to end the process (S25). If the process is not terminated (NO in S25), the CPU 21 continues the process from step S11 onward, and if it is determined that the process is terminated (YES in S25), the process is terminated.

  The information providing apparatus according to the present embodiment can be realized using a general-purpose computer including a CPU (processor), a RAM, and the like. That is, as shown in FIG. 18 and FIG. 19, a computer program that defines the procedure of each process (method steps executed by the CPU) is loaded into a RAM provided in the computer, and the computer program is executed by the CPU (processor). By doing so, an information providing apparatus can be realized on a computer.

  Moreover, the computer program which defined the step of the method which CPU performs as shown in FIG.18 and FIG.19 can be recorded on the non-transitory recording medium which can be read with a computer.

  The processing shown in FIGS. 18 and 19 can be performed for each of the inflow paths facing each other at the intersection (for example, the upward direction and the downward direction). In this case, if the number of vehicles per unit time (including the flow rate) is less than or equal to a threshold value (for example, 80% of the highest point) on both the inflow path in the upward direction and the downward direction, it is determined that the timing of the green signal is terminated. Alternatively, the determination may be made with priority given to the one having a large traffic volume in the upward direction and the downward direction.

  Of the processes shown in FIGS. 18 and 19, for example, the portable information processing device 50 performs the traffic signal control by performing the processes from step S11 to step S17, step S19, etc. in the traffic signal controller 100 or the server 1. The information received from the machine 100 or the server 1 may be displayed.

  In the above-described embodiment, the number of vehicles per predetermined time (including the flow rate) is a numerical value per lane, but is not limited to this, and is the total value of all the lanes of the inflow channel. Also good. Moreover, although the numerical value was demonstrated as the traffic volume per 30 seconds, it can also be shown per second or per hour. In this case, for example, 15 units / 30 seconds corresponds to 0.5 units / second and 1800 units / hour.

  The disclosed embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

50 Portable information processing device 51 CPU
511 Identification unit 512 Determination unit 52 Communication unit 521 Number acquisition unit 522 Signal information acquisition unit 53 Display unit 54 Storage unit 55 Operation unit 100 Traffic signal controller 201, 202 Signal lamp

Claims (14)

A number acquisition unit for acquiring the number of vehicles passing through a predetermined position in a predetermined lane of an inflow path flowing into the intersection;
A signal information acquisition unit for acquiring signal information of the intersection;
A specifying unit that specifies the number of vehicles passing through the predetermined position between a first time point and a second time point after the start of a green light for the inflow path, a plurality of times while updating the second time point until the end of the green light; ,
An information providing apparatus comprising: a display unit configured to display information related to the number of vehicles per predetermined time passing through the predetermined position based on the number of vehicles specified by the specifying unit each time the second time point is updated. The display unit
The information providing apparatus according to claim 1, wherein among the information displayed every time the second time point is updated, information satisfying a predetermined condition is continuously displayed until the predetermined time point.   The information providing apparatus according to claim 2, further comprising: a determination unit configured to determine, as the predetermined condition, a case where the number of vehicles per predetermined time is maximized between the start of the green signal and the end of the green signal. A storage unit that stores a maximum value of the number of vehicles per predetermined time passing through the predetermined position between the start of the green signal and the end of the green signal over a plurality of signal cycles;
The display unit
The information providing apparatus according to any one of claims 1 to 3, wherein information related to a representative value of the maximum value stored in the storage unit is displayed. The display unit
The information providing apparatus according to any one of claims 1 to 4, wherein when the number of vehicles per predetermined time is equal to or less than a predetermined threshold, a message indicating that the number of vehicles is equal to or less than the threshold is displayed. The display unit
The information providing device according to any one of claims 1 to 5, wherein, every time the second time point is updated, if the number of vehicles per predetermined time decreases, a message indicating a decrease is displayed. . The display unit
The information providing device according to any one of claims 1 to 6, wherein when the number of vehicles per predetermined time increases each time the second time point is updated, an indication to increase is displayed. .   The information providing apparatus according to claim 1, wherein the first time is a start time of the green light.   The information providing apparatus according to claim 1, wherein the first time point is a time point that is a first predetermined time before the second time point. The display unit
The information providing apparatus according to any one of claims 1 to 9, wherein an image obtained by imaging the inflow path is displayed together with information on the number of vehicles per predetermined time. The display unit
The information according to any one of claims 1 to 10, wherein information related to the number of vehicles per predetermined time is displayed after a time longer than the predetermined time from the start of the green light. Providing device. A computer program for causing a computer to provide information on the number of vehicles,
Computer
A number acquisition unit for acquiring the number of vehicles passing through a predetermined position in a predetermined lane of an inflow path flowing into the intersection;
A signal information acquisition unit for acquiring signal information of the intersection;
A specifying unit that specifies the number of vehicles passing through the predetermined position between a first time point and a second time point after the start of a green light for the inflow path, a plurality of times while updating the second time point until the end of the green light; ,
A computer program that functions as a generating unit that generates information to display on a display unit information related to the number of vehicles per predetermined time passing through the predetermined position based on the specified number of vehicles each time the second time point is updated. A non-transitory recording medium readable by a computer that records a computer program for providing information related to the number of vehicles to the computer,
The computer program is
Computer
A number acquisition unit for acquiring the number of vehicles passing through a predetermined position in a predetermined lane of an inflow path flowing into the intersection;
A signal information acquisition unit for acquiring signal information of the intersection;
A specifying unit that specifies the number of vehicles passing through the predetermined position between a first time point and a second time point after the start of a green light for the inflow path, a plurality of times while updating the second time point until the end of the green light; ,
Each time the second time point is updated, the computer functions as a generation unit that generates information to display on the display unit information related to the number of vehicles per predetermined time passing through the predetermined position based on the specified number of vehicles. A non-transitory recording medium that can be read. The number acquisition unit acquiring the number of vehicles passing through a predetermined position of a predetermined lane of the inflow path flowing into the intersection;
A signal information acquisition unit acquiring signal information of the intersection; and
The specifying unit specifies the number of vehicles passing through the predetermined position from the first time point to the second time point after the start of the green signal for the inflow path while updating the second time point until the end of the green signal. Steps,
And a display unit displaying information on the number of vehicles per predetermined time passing through the predetermined position based on the specified number of vehicles each time the second time point is updated.

Images